i also have a '94 sol w/ lights under my dash. mine came w/ a transformer... but that's irrelevant in your case. it's so easy it's almost funny. simply run a wire from the battery, or another power wire in the car to the switch. run the power wire from the switch out of the negative terminal on the switch. then run the ground wire to a chassis/wire ground. find a place for the switch, mount it, and mount the neon. hide wires... and you're done